Aside from maybe the recent nerfs, Warrior’s Aura has typically outclassed any imbue (do note that imbues have synergies, however). I don’t think viability (until now) was ever the problem with Warrior Awakening, it was always an issue of just being boring.
You could compare it to imbues because of their similar functions, but imbues are still superior. The visual changes are more drastic (they literally mesh with your element), they have synergies (for the most part) and the stat changes are more interesting.
Add this to the fact that you don’t gain any new tools from being a Warrior. Mage/Zerker get a new magic/fstyle, and hybrids by default have more tools. The fact that Warriors will have higher-tier weapons isn’t anything special since Mages/Zerkers will have higher-tier skills and magics/fstyles as well.
I’d argue that 2nd fstyle is relatively comparable because 2nd fstyle skills are actually reliable unlike 2nd magic skills.
You can actually make use of your second fighting style while with magic it’s just spamming spells on your first magic and occasionally landing with your second for stuns or extra damage
